monesard7eebr monesard7eebr
  • 23-11-2016
  • Mathematics
contestada

Which ordered pair is the solution to the system?

{x+3y=6
{4x+6y=−6

(−9, 5)
(−3, 3)
(12, −2)
(6, 3)

Respuesta :

anouar
anouar anouar
  • 23-11-2016
x=6-3y
4(6-3y)+6y=-6
24-12y+6y=-6
24-6y=-6
-6y=-30
y=30/6
y=5

x+3 (5)=6
x+15=6
x=-9. (-9,5) <------------
Answer Link

Otras preguntas

When is estimation an effective way to determine an answer
how would you simplify this.
29/5 converted to a mixed number
How to find the LCM OF two numbers
4x-3(x + 5) > 7-4(x + 6) Can someone please help me? I don't understand how I'm supposed to go about this problem and how I'm supposed to solve it.
solve for the indicated variable in each literal equationa/b = c for b
Which of the following statements is true of chords? Select all that apply. A chord is a line segment. A chord connects two points on a circle. A chord can be a
______ dieciséis años. use right form of tener
If the leftmost digits of two numbers are eight and three, which one is greater? explain
Wright the inequality that represents the sentence. 1. Five less than a number is at least -28. 2. The product of a number and four is at most -10. 3. Six more